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High School Science Fair Projects

Need a science fair project that's fun, engaging, and appropriately rigorous for a high school science fair? Education.com has assembled a rich collection of high school science fair projects and high school science fair project ideas written by our team of professional scientists, science teachers, and educational consultants. We offer free high school science experiments on every science fair topic, including physics, chemistry, biology, engineering, and even psychology. Check the boxes in the sidebar to filter your results, or use the search bar to find a winning idea for your upcoming science fair. Hundreds of good science fair projects are only a click away.

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Showing 46 to 60 of 154
This science fair project idea  determines whether plants grow better in soil or in fish ponds.
High School
Botany
This science fair project idea determines if mice and rats become aggressive when another mouse or rat is introduced into their territory.
High School
Zoology
Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.
Microbiology
Sixth Grade
This science fair project idea assesses the effect of music on work performance.
High School
Life Science
Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?
Life Science
Seventh Grade
This science fair project idea  determines whether dogs can be trained faster using a food reward or praise.
High School
Zoology
This science fair project explores  a personâs eye-color genotype.
High School
Genetics
Science fair project in which you will graft branches from different fruit tree onto a root stalk.
Botany
Eighth Grade
This science fair project idea explores which is better for diffusion and cell absorbing, more surface area, or more volume.
High School
Life Science

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